W9425G6JH_13 Datasheet, PDF (19/52 Pages) Winbond – 4 M x 4 BANKS x 16 BITS DDR SDRAM

W9425G6JH
Function Truth Table, continued
CURRENT
STATE
Read with
Auto-
precharge
Write with
Auto-
precharge
Precharging
CS RAS
H
X
L
H
L
H
L
H
L
H
L
L
L
L
L
L
L
L
H
X
L
H
L
H
L
H
L
H
L
L
L
L
L
L
L
L
H
X
L
H
L
H
L
H
L
H
L
L
L
L
L
L
L
L
H
X
CAS
X
H
H
L
L
H
H
L
L
X
H
H
L
L
H
H
L
L
X
H
H
L
L
H
H
L
L
X
L
H
H
L
H
H
L
H
L
Row
Activating
L
H
L
L
L
H
L
L
H
L
L
L
L
L
L
W E ^ADDRESS
COMMAND
XX
DSL
HX
NOP
LX
BST
H BA, CA, A10 READ/READA
L BA, CA, A10 WRIT/WRITA
H BA, RA
ACT
L BA, A10
PRE/PREA
HX
L Op-Code
AREF/SELF
MRS/EMRS
XX
HX
DSL
NOP
LX
BST
H BA, CA, A10 READ/READA
L BA, CA, A10 WRIT/WRITA
H BA, RA
L BA, A10
HX
ACT
PRE/PREA
AREF/SELF
L Op-Code
MRS/EMRS
XX
HX
LX
DSL
NOP
BST
H BA, CA, A10 READ/READA
L BA, CA, A10 WRIT/WRITA
H BA, RA
ACT
L BA, A10
HX
L Op-Code
PRE/PREA
AREF/SELF
MRS/EMRS
XX
DSL
HX
NOP
LX
BST
H BA, CA, A10 READ/READA
L BA, CA, A10 WRIT/WRITA
H BA, RA
ACT
L BA, A10
PRE/PREA
HX
AREF/SELF
L Op-Code
MRS/EMRS
ACTION
Continue burst to end
Continue burst to end
ILLEGAL
ILLEGAL
ILLEGAL
ILLEGAL
ILLEGAL
ILLEGAL
ILLEGAL
Continue burst to end
Continue burst to end
ILLEGAL
ILLEGAL
ILLEGAL
ILLEGAL
ILLEGAL
ILLEGAL
ILLEGAL
NOP-> Idle after tRP
NOP-> Idle after tRP
ILLEGAL
ILLEGAL
ILLEGAL
ILLEGAL
Idle after tRP
ILLEGAL
ILLEGAL
NOP-> Row active after tRCD
NOP-> Row active after tRCD
ILLEGAL
ILLEGAL
ILLEGAL
ILLEGAL
ILLEGAL
ILLEGAL
ILLEGAL
NOTES
3
3
3
3
3
3
3
3
3
3
3
- 19 -
Publication Release Date: Aug. 27, 2013
Revision A03